Runaway guard device for skis

ABSTRACT

A runaway guard device for skis comprising at least one detachable holding means designed to be fixed to the ski near the toe of the boot as well as to the front of the boot. The guard device includes an elastic coupling means which is resistant to tensile stress and permanent deformation; but which also has portions that, while less resistant to distortion and bending, are more resistant to pressure and buckling.

United States Patent [1 1 Riedel 1 May 20, 1975 RUNAWAY GUARD DEVICE FOR SKIS [76] Inventor: Tilo Herbert Riedel, Gaisberjotrope 73 b, A 5020 Salzburg, Austria [22] Filed: Apr. 25, 1972 [21] Appl. No.1 247,424

[30] Foreign Application Priority Data Apr, 29, 1971 Austria i. 13712/71 July 22, 1971 Austria;... 6398/71 Feb. 9, 1972 Austria 1058/72 [52] US. Cl. 280/1l.35 N; 24/230 SL [51] Int. Cl. A63c 9/08 [58] Field of Search 280/11.35 N; 24/73 SG,

24/70 SK, 68 SK, 230 R, 230 SC, 230 CF, 230 SL, 16 PB, 30.5 P

[56] References Cited UNITED STATES PATENTS 2,933,324 4/1960 Stimler 280/1 1.35 N 3,251,110 5/1966 Hedu Rumaner 280/1 1.35 N X 3,452,999 7/1969 Salomon 2230/] 1.35 N 3,490,782 l/197O Hatalpa 280/1 1.35 N 3,549,163 12/1970 Wiedermann 280/[ 1.35 N

FOREIGN PATENTS OlR APPLICATIONS 279,442 3/1970 Austria 280/1 1.35 N 340,171 9/1959 Switzerland 280/11.35 N

Primary Examiner-David Schonberg Assistant Examiner-David M. Mitchell Attorney, Agent, or FirmLawrence Rosen; E. Janet Berry 157] ABSTRACT A runaway guard device for skis comprising at least one detachable holding means designed to be fixed to the ski near the toe of the boot as well as to the front of the boot. The guard device includes an elastic coupling means which is resistant to tensile stress and permanent deformation; but which also has portions that, while less resistant to distortion and bending, are more resistant to pressure and buckling.

20 Claims, 91 Drawing Figures PATEN HAYZOIQYS SHEET (JlUF 22 FIG. 4

FIG. II

FIGS

PA l ENTi-ii) MAY 2 U (975 SHEET 02 0F 2 H. m F

P TEMEDW H Y I 3 884 488 SHEET BMW 22 9 FIG. 19

FMENIEURAYZOIBYS $884,488

SHEET CSUF 22 FIG.20

FIG. 22 23 PATENTEU 3,884,488

SHEET OBUF 22 PATENTEDHAYYZUIBYS 3884 488 SHEET 08 0F 22 FIG. 32

-gmpngmzcrzomrs r 3 8 84 488 SHEET OSOF 22 I V I PATENIEUHM 3,884,488

SHEET lDDF 22 PATENIED HAY 2W5 $884,488

SHEET 11 0F 22 PATENTEDNAYZOIQYS I 3,884,488

SHEET 12UF 22 FIG. 46 FIG. 1.7

/'7 I 'F-- S |os- "105 F1648 9 FIG. 1.9

I'll! FIG. 51

SHEET lSOF 22 NWN EN mwm xw i

Pmmmm $884,488

SHEET 190F22 

1. A runaway guard device for skis having a releasable binding for a ski boot including a toe binding and heel clamp means, said guard device comprising at least one detachable rigid holding means including a relatively broad base plate for attachment to the ski adjacent the toe binding, a thin upwardly direcTed arcuate portion, and a rearwardly directed upper portion having a thickness greater than that of said arcuate portion, said rearwardly directed upper portion being of substantially less width than said base portion and being intended to overlie the toe binding and including an engaging element for engagement with a coupling piece mounted on the toe of the boot, the arrangement being such that the connection at the coupling piece is designed to come apart when the ski is taken off, said guard device being inherently flexible and including portions which may deform elastically, said guard being further characterized by resistance to tensile stress and permanent deformation and also being capable of moving about an imaginery transverse axis in the zone of attachment to the ski owing to its having the form of a band presenting substantially lower resistance in respect to a transverse axis than in respect of the other two axes perpendicular to said transverse axis.
 2. A guard device as set forth in claim 1, characterized in that it is produced from a reinforced thermoplastic material.
 3. A guard device as set forth in claim 1, characterized in that it includes reinforcement selected from the class consisting of glass fibre and spring wire.
 4. A guard device as set forth in claim 1 where the free extremity of said rearwardly directed upper portion presents a barb designed to be forced in a direction toward said base plate and subsequently snaps into engagement when inserted into said coupling piece.
 5. A guard device as set forth in claim 1 characterized in that it consists of a single piece.
 6. A guard device as set forth in claim 1 where the coupling piece is attached to a buckle part of a buckle-type boot by a two-piece clamp.
 7. A guard device as set forth in claim 1 characterized in that in a buckle-type boot the buckle mount is provided with means for attachment thereto of said coupling piece.
 8. A guard device as set forth in claim 1 characterized in that the coupling piece is swivel-mounted on the boot.
 9. A guard device as set forth in claim 1 characterized in that the guard is adjustable and comprises two elements which surround each other and which are selectively movable toward and from each other.
 10. A guard device as set forth in claim 1 characterized in that the base plate includes a plurality of slots to permit selective longitudinal adjustment with respect to the ski.
 11. A guard device as set forth in claim 1 where said rearwardly directed upper portion terminates at its free extremity in an engaging element in the form of a hook.
 12. A guard device as set forth in claim 11 where the rearwardly directed upper portion includes a design rupture point immediately adjacent the hook.
 13. A guard device as set forth in claim 1 where the rearwardly directed upper portion includes a design rupture point.
 14. A guard device as set forth in claim 13 characterized in that said design rupture point is in the form of a widened web portion.
 15. A guard device as set forth in claim 1 characterized in that it comprises at least one rotatably mounted apertured lug constituting the coupling piece, said engaging element being a hook, and said hook when engaged with said lug substantially fills the aperture therein, the arrangement being such that, with the guard device under normal load, the disengaging of the hook from the lug can be effected merely by compressing the hook.
 16. A guard device as set forth in claim 15 characterized in that the cross-section of the hook and that of the aperture in the lug are substantially circular and permit of a rotary movement relative to each other.
 17. A guard device as set forth in claim 15 characterized in that the hook has its smallest cross-section adjacent the base thereof for the purpose of forming an emergency tripping point.
 18. A guard device as set forth in claim 15 characterized in that the hook includes upper and lower parts spaced so as to provide a transverse aperture therebetween, said upper and lower parts being united at their extremities by points of reduced cross section.
 19. A guard device as set forth in claim 18 characterized in that said upper part includes a hook band and said points of reduced cross-section constitute design bending points.
 20. A guard device as set forth in claim 19 characterized in that at least the hook band is provided with a gripping recess. 